/* flow_graph.c * $Id$ * Allows to display a flow graph of the currently displayed packets * * Copyright 2004, Ericsson , Spain * By Francisco Alcoba * * Ethereal - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H # include #endif #include "register.h" #include "globals.h" #include "epan/filesystem.h" #include "graph_analysis.h" #include #include "../stat_menu.h" #include "gui_stat_menu.h" #include "dlg_utils.h" #include "gui_utils.h" #include "compat_macros.h" #include "gtkglobals.h" #include "simple_dialog.h" #include #include #include #include #include #define DISPLAYED 0 #define ALL 1 #define GENERAL 0 #define TCP 1 #define SRCDST 0 #define NET_SRCDST 1 static int type_of_packets = DISPLAYED; static int type_of_flow = GENERAL; static int node_addr_type = SRCDST; static int tap_identifier; static gboolean have_frame_tap_listener=FALSE; static gboolean have_tcp_tap_listener=FALSE; static graph_analysis_info_t *graph_analysis = NULL; static graph_analysis_data_t *graph_analysis_data; static GtkWidget *flow_graph_dlg = NULL; static GtkWidget *select_all_rb; static GtkWidget *select_displayed_rb; static GtkWidget *select_general_rb; static GtkWidget *select_tcp_rb; static GtkWidget *src_dst_rb; static GtkWidget *net_src_dst_rb; void flow_graph_data_init(void); /****************************************************************************/ /* free up memory and initialize the pointers */ static void flow_graph_reset(void *ptr _U_) { graph_analysis_item_t *graph_item; GList* list; if (graph_analysis !=NULL){ /* free the graph data items */ list = g_list_first(graph_analysis->list); while (list) { graph_item = list->data; g_free(graph_item->frame_label); g_free(graph_item->comment); g_free(list->data); list = g_list_next(list); } g_list_free(graph_analysis->list); graph_analysis->nconv = 0; graph_analysis->list = NULL; } return; } /****************************************************************************/ void flow_graph_data_init(void) { graph_analysis = g_malloc(sizeof(graph_analysis_info_t)); graph_analysis->nconv = 0; graph_analysis->list = NULL; return; } /* XXX just copied from gtk/rpc_stat.c */ void protect_thread_critical_region(void); void unprotect_thread_critical_region(void); /****************************************************************************/ static void remove_tap_listener_flow_graph(void) { protect_thread_critical_region(); remove_tap_listener(&(tap_identifier)); unprotect_thread_critical_region(); have_frame_tap_listener=FALSE; have_tcp_tap_listener=FALSE; } /****************************************************************************/ /* CALLBACKS */ /****************************************************************************/ static void flow_graph_on_destroy(GtkObject *object _U_, gpointer user_data _U_) { /* remove_tap_listeners */ remove_tap_listener_flow_graph(); /* Clean up memory used by tap */ flow_graph_reset(NULL); /* Note that we no longer have a "Flow Graph" dialog box. */ flow_graph_dlg = NULL; } /****************************************************************************/ static void toggle_select_all(GtkWidget *widget _U_, gpointer user_data _U_) { /* is the button now active? */ if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(select_all_rb))) { type_of_packets = ALL; } } /****************************************************************************/ static void toggle_select_displayed(GtkWidget *widget _U_, gpointer user_data _U_) { /* is the button now active? */ if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(select_displayed_rb))) { type_of_packets = DISPLAYED; } } /****************************************************************************/ static void toggle_select_general(GtkWidget *widget _U_, gpointer user_data _U_) { /* is the button now active? */ if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(select_general_rb))) { type_of_flow = GENERAL; } } /****************************************************************************/ static void toggle_select_tcp(GtkWidget *widget _U_, gpointer user_data _U_) { /* is the button now active? */ if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(select_tcp_rb))) { type_of_flow = TCP; } } /****************************************************************************/ static void toggle_select_srcdst(GtkWidget *widget _U_, gpointer user_data _U_) { /* is the button now active? */ if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(src_dst_rb))) { node_addr_type = SRCDST; } } /****************************************************************************/ static void toggle_select_netsrcdst(GtkWidget *widget _U_, gpointer user_data _U_) { /* is the button now active? */ if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(net_src_dst_rb))) { node_addr_type = NET_SRCDST; } } /****************************************************************************/ /* Add a new frame into the graph */ static int flow_graph_frame_add_to_graph(packet_info *pinfo) { graph_analysis_item_t *gai; int i; gchar *protocol; gchar *colinfo; protocol=NULL; colinfo=NULL; if (node_addr_type == NET_SRCDST) { if (pinfo->net_src.type!=AT_NONE && pinfo->net_dst.type!=AT_NONE) { gai = g_malloc(sizeof(graph_analysis_item_t)); COPY_ADDRESS(&(gai->src_addr),&(pinfo->net_src)); COPY_ADDRESS(&(gai->dst_addr),&(pinfo->net_dst)); } else return 0; } else { if (pinfo->src.type!=AT_NONE && pinfo->dst.type!=AT_NONE) { gai = g_malloc(sizeof(graph_analysis_item_t)); COPY_ADDRESS(&(gai->src_addr),&(pinfo->src)); COPY_ADDRESS(&(gai->dst_addr),&(pinfo->dst)); } else return 0; } gai->frame_num = pinfo->fd->num; gai->time= nstime_to_sec(&pinfo->fd->rel_ts); gai->port_src=pinfo->srcport; gai->port_dst=pinfo->destport; gai->comment=NULL; gai->frame_label=NULL; if (gai->comment!=NULL){ g_free(gai->comment); } if (gai->frame_label!=NULL){ g_free(gai->frame_label); } if (pinfo->cinfo->col_first[COL_INFO]>=0){ for (i = pinfo->cinfo->col_first[COL_INFO]; i <= pinfo->cinfo->col_last[COL_INFO]; i++) { if (pinfo->cinfo->fmt_matx[i][COL_INFO]) { colinfo = g_strdup(pinfo->cinfo->col_data[i]); } } } if (pinfo->cinfo->col_first[COL_PROTOCOL]>=0){ for (i = pinfo->cinfo->col_first[COL_PROTOCOL]; i <= pinfo->cinfo->col_last[COL_PROTOCOL]; i++) { if (pinfo->cinfo->fmt_matx[i][COL_PROTOCOL]) { protocol = g_strdup(pinfo->cinfo->col_data[i]); } } } if (colinfo != NULL) { if (protocol != NULL) { gai->frame_label = g_strdup_printf("%.19s", colinfo); gai->comment = g_strdup_printf("%s: %s", protocol, colinfo); } else { gai->frame_label = g_strdup_printf("%.19s", colinfo); gai->comment = g_strdup_printf("%s", colinfo); } } else { /* This will probably never happen...*/ if (protocol != NULL) { gai->frame_label = g_strdup_printf("%.19s", protocol); gai->comment = g_strdup_printf("%s", protocol); } else { gai->frame_label = NULL; gai->comment = NULL; } } if (protocol!=NULL){ g_free(protocol); } if (colinfo!=NULL){ g_free(colinfo); } gai->line_style=1; gai->conv_num=0; gai->display=TRUE; graph_analysis->list = g_list_append(graph_analysis->list, gai); return 1; } /****************************************************************************/ /* Add a new tcp frame into the graph */ static int flow_graph_tcp_add_to_graph(packet_info *pinfo, const struct tcpheader *tcph) { graph_analysis_item_t *gai; /* copied from packet-tcp */ const gchar *fstr[] = {"FIN", "SYN", "RST", "PSH", "ACK", "URG", "ECN", "CWR" }; guint i, bpos; guint fpos = 0; gchar flags[64] = ""; gai = g_malloc(sizeof(graph_analysis_item_t)); gai->frame_num = pinfo->fd->num; gai->time= nstime_to_sec(&pinfo->fd->rel_ts); if (node_addr_type == NET_SRCDST) { COPY_ADDRESS(&(gai->src_addr),&(pinfo->net_src)); COPY_ADDRESS(&(gai->dst_addr),&(pinfo->net_dst)); } else { COPY_ADDRESS(&(gai->src_addr),&(pinfo->src)); COPY_ADDRESS(&(gai->dst_addr),&(pinfo->dst)); } gai->port_src=pinfo->srcport; gai->port_dst=pinfo->destport; for (i = 0; i < 8; i++) { bpos = 1 << i; if (tcph->th_flags & bpos) { if (fpos) { strcpy(&flags[fpos], ", "); fpos += 2; } strcpy(&flags[fpos], fstr[i]); fpos += 3; } } flags[fpos] = '\0'; if ((tcph->th_have_seglen)&&(tcph->th_seglen!=0)){ gai->frame_label = g_strdup_printf("%s - Len: %u",flags, tcph->th_seglen); } else{ gai->frame_label = g_strdup(flags); } gai->comment = g_strdup_printf("Seq = %u Ack = %u",tcph->th_seq, tcph->th_ack); gai->line_style=1; gai->conv_num=0; gai->display=TRUE; graph_analysis->list = g_list_append(graph_analysis->list, gai); return 1; } /****************************************************************************/ /* whenever a frame packet is seen by the tap listener */ static int flow_graph_frame_packet( void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *dummy _U_) { if ((type_of_packets == ALL)||(pinfo->fd->flags.passed_dfilter==1)){ flow_graph_frame_add_to_graph(pinfo); } return 1; } /****************************************************************************/ /* whenever a TCP packet is seen by the tap listener */ static int flow_graph_tcp_packet( void *ptr _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *tcp_info) { const struct tcpheader *tcph = tcp_info; if ((type_of_packets == ALL)||(pinfo->fd->flags.passed_dfilter==1)){ flow_graph_tcp_add_to_graph(pinfo,tcph); } return 1; } static void flow_graph_packet_draw(void *prs _U_) { return; } /****************************************************************************/ static void flow_graph_on_ok (GtkButton *button _U_, gpointer user_data _U_) { if ((have_frame_tap_listener==TRUE) ||(have_tcp_tap_listener==TRUE)) { /* remove_tap_listeners */ remove_tap_listener_flow_graph(); } /* Scan for displayed packets (retap all packets) */ if (type_of_flow == GENERAL){ /* Register the tap listener */ if(have_frame_tap_listener==FALSE) { /* don't register tap listener, if we have it already */ register_tap_listener("frame", &tap_identifier, NULL, flow_graph_reset, flow_graph_frame_packet, flow_graph_packet_draw ); have_frame_tap_listener=TRUE; } cf_retap_packets(&cfile, TRUE); } else if (type_of_flow == TCP){ /* Register the tap listener */ if(have_tcp_tap_listener==FALSE) { /* don't register tap listener, if we have it already */ register_tap_listener("tcp", &tap_identifier, NULL, flow_graph_reset, flow_graph_tcp_packet, flow_graph_packet_draw ); have_tcp_tap_listener=TRUE; } cf_retap_packets(&cfile, FALSE); } if (graph_analysis_data->dlg.window != NULL){ /* if we still have a window */ graph_analysis_update(graph_analysis_data); /* refresh it xxx */ } else{ graph_analysis_create(graph_analysis_data); } } /****************************************************************************/ /* INTERFACE */ /****************************************************************************/ static void flow_graph_dlg_create (void) { GtkWidget *flow_graph_dlg_w; GtkWidget *main_vb; GtkWidget *hbuttonbox; GtkWidget *bt_close, *bt_ok; #if 0 GtkWidget *top_label = NULL; #endif GtkWidget *flow_type_fr, *range_fr, *range_tb, *flow_type_tb, *node_addr_fr, *node_addr_tb; #if GTK_MAJOR_VERSION < 2 GtkAccelGroup *accel_group; #endif GtkTooltips *tooltips = gtk_tooltips_new(); flow_graph_dlg_w=window_new(GTK_WINDOW_TOPLEVEL, "Ethereal: Flow Graph"); gtk_window_set_default_size(GTK_WINDOW(flow_graph_dlg_w), 350, 150); main_vb = gtk_vbox_new (FALSE, 0); gtk_container_add(GTK_CONTAINER(flow_graph_dlg_w), main_vb); gtk_container_set_border_width (GTK_CONTAINER (main_vb), 12); #if GTK_MAJOR_VERSION < 2 /* Accelerator group for the accelerators (or, as they're called in Windows and, I think, in Motif, "mnemonics"; Alt+ is a mnemonic, Ctrl+ is an accelerator). */ accel_group = gtk_accel_group_new(); gtk_window_add_accel_group(GTK_WINDOW(main_vb), accel_group); #endif #if 0 top_label = gtk_label_new ("Choose packets to include in the graph"); gtk_box_pack_start (GTK_BOX (main_vb), top_label, FALSE, FALSE, 8); #endif gtk_widget_show(flow_graph_dlg_w); /*** Packet range frame ***/ range_fr = gtk_frame_new("Choose packets"); gtk_box_pack_start(GTK_BOX(main_vb), range_fr, FALSE, FALSE, 0); range_tb = gtk_table_new(4, 4, FALSE); gtk_container_border_width(GTK_CONTAINER(range_tb), 5); gtk_container_add(GTK_CONTAINER(range_fr), range_tb); /* Process all packets */ select_all_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(NULL, "_All packets", accel_group); gtk_tooltips_set_tip (tooltips, select_all_rb, ("Process all packets"), NULL); SIGNAL_CONNECT(select_all_rb, "toggled", toggle_select_all, NULL); gtk_table_attach_defaults(GTK_TABLE(range_tb), select_all_rb, 0, 1, 0, 1); if (type_of_packets == ALL) { gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(select_all_rb),TRUE); } gtk_widget_show(select_all_rb); /* Process displayed packets */ select_displayed_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(select_all_rb, "_Displayed packets", accel_group); gtk_tooltips_set_tip (tooltips, select_displayed_rb, ("Process displayed packets"), NULL); SIGNAL_CONNECT(select_displayed_rb, "toggled", toggle_select_displayed, NULL); gtk_table_attach_defaults(GTK_TABLE(range_tb), select_displayed_rb, 1, 2, 0, 1); if (type_of_packets == DISPLAYED) { gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(select_displayed_rb),TRUE); } gtk_widget_show(select_displayed_rb); gtk_widget_show(range_tb); gtk_widget_show(range_fr); /*** Flow type frame ***/ flow_type_fr = gtk_frame_new("Choose flow type"); gtk_box_pack_start(GTK_BOX(main_vb), flow_type_fr, FALSE, FALSE, 0); flow_type_tb = gtk_table_new(4, 4, FALSE); gtk_container_border_width(GTK_CONTAINER(flow_type_tb), 5); gtk_container_add(GTK_CONTAINER(flow_type_fr), flow_type_tb); /* General information */ select_general_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(NULL, "_General flow", accel_group); gtk_tooltips_set_tip (tooltips, select_general_rb, ("Show all packets, with general information"), NULL); SIGNAL_CONNECT(select_general_rb, "toggled", toggle_select_general, NULL); gtk_table_attach_defaults(GTK_TABLE(flow_type_tb), select_general_rb, 0, 1, 0, 1); if (type_of_flow == GENERAL) { gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(select_general_rb),TRUE); } gtk_widget_show(select_general_rb); /* TCP specific information */ select_tcp_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(select_general_rb, "_TCP flow", accel_group); gtk_tooltips_set_tip (tooltips, select_tcp_rb, ("Show only TCP packets, with TCP specific information"), NULL); SIGNAL_CONNECT(select_tcp_rb, "toggled", toggle_select_tcp, NULL); gtk_table_attach_defaults(GTK_TABLE(flow_type_tb), select_tcp_rb, 1, 2, 0, 1); if (type_of_flow == TCP) { gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(select_tcp_rb),TRUE); } gtk_widget_show(select_tcp_rb); gtk_widget_show(flow_type_tb); gtk_widget_show(flow_type_fr); /*** Node address type frame ***/ node_addr_fr = gtk_frame_new("Choose node address type"); gtk_box_pack_start(GTK_BOX(main_vb), node_addr_fr, FALSE, FALSE, 0); node_addr_tb = gtk_table_new(4, 4, FALSE); gtk_container_border_width(GTK_CONTAINER(node_addr_tb), 5); gtk_container_add(GTK_CONTAINER(node_addr_fr), node_addr_tb); /* Source / Dest address */ src_dst_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(NULL, "_Standard source/destination addresses", accel_group); gtk_tooltips_set_tip (tooltips, src_dst_rb, ("Nodes in the diagram are identified with source and destination addresses"), NULL); SIGNAL_CONNECT(src_dst_rb, "toggled", toggle_select_srcdst, NULL); gtk_table_attach_defaults(GTK_TABLE(node_addr_tb), src_dst_rb, 0, 1, 0, 1); if (node_addr_type == SRCDST) { gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(src_dst_rb),TRUE); } gtk_widget_show(src_dst_rb); /* Network source / dest address */ net_src_dst_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(src_dst_rb, "_Network source/destination addresses", accel_group); gtk_tooltips_set_tip (tooltips, net_src_dst_rb, ("Nodes in the diagram are identified with network source and destination addresses"), NULL); SIGNAL_CONNECT(net_src_dst_rb, "toggled", toggle_select_netsrcdst, NULL); gtk_table_attach_defaults(GTK_TABLE(node_addr_tb), net_src_dst_rb, 1, 2, 0, 1); if (node_addr_type == NET_SRCDST) { gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(net_src_dst_rb),TRUE); } gtk_widget_show(net_src_dst_rb); gtk_widget_show(node_addr_tb); gtk_widget_show(node_addr_fr); /* button row */ hbuttonbox = gtk_hbutton_box_new (); gtk_box_pack_start (GTK_BOX (main_vb), hbuttonbox, FALSE, FALSE, 0); gtk_button_box_set_layout (GTK_BUTTON_BOX (hbuttonbox), GTK_BUTTONBOX_SPREAD); gtk_button_box_set_spacing (GTK_BUTTON_BOX (hbuttonbox), 30); bt_ok = BUTTON_NEW_FROM_STOCK(GTK_STOCK_OK); gtk_container_add(GTK_CONTAINER(hbuttonbox), bt_ok); gtk_tooltips_set_tip (tooltips, bt_ok, "Show the flow graph", NULL); SIGNAL_CONNECT(bt_ok, "clicked", flow_graph_on_ok, NULL); gtk_widget_show(bt_ok); bt_close = BUTTON_NEW_FROM_STOCK(GTK_STOCK_CLOSE); gtk_container_add (GTK_CONTAINER (hbuttonbox), bt_close); GTK_WIDGET_SET_FLAGS(bt_close, GTK_CAN_DEFAULT); gtk_tooltips_set_tip (tooltips, bt_close, "Close this dialog", NULL); window_set_cancel_button(flow_graph_dlg_w, bt_close, window_cancel_button_cb); SIGNAL_CONNECT(flow_graph_dlg_w, "delete_event", window_delete_event_cb, NULL); SIGNAL_CONNECT(flow_graph_dlg_w, "destroy", flow_graph_on_destroy, NULL); gtk_widget_show_all(flow_graph_dlg_w); window_present(flow_graph_dlg_w); flow_graph_dlg = flow_graph_dlg_w; } /****************************************************************************/ /* PUBLIC */ /****************************************************************************/ /* init function for tap */ static void flow_graph_init_tap(const char *dummy _U_, void* userdata _U_) { /* initialize graph items store */ flow_graph_data_init(); /* init the Graph Analysys */ graph_analysis_data = graph_analysis_init(); graph_analysis_data->graph_info = graph_analysis; /* create dialog box if necessary */ if (flow_graph_dlg == NULL) { flow_graph_dlg_create(); } else { /* There's already a dialog box; reactivate it. */ reactivate_window(flow_graph_dlg); } } /****************************************************************************/ /* entry point when called via the GTK menu */ static void flow_graph_launch(GtkWidget *w _U_, gpointer data _U_) { flow_graph_init_tap("",NULL); } /****************************************************************************/ void register_tap_listener_flow_graph(void) { register_stat_cmd_arg("flow_graph",flow_graph_init_tap,NULL); register_stat_menu_item("Flo_w Graph...", REGISTER_STAT_GROUP_NONE, flow_graph_launch, NULL, NULL, NULL); }